<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <h2>接口文档应用</h2>
    <button>测试接口</button>
    <script src="https://cdn.jsdelivr.net/npm/axios/dist/axios.min.js"></script>

    <script>
        document.querySelector('button').onclick = function(){

            // ajax前后端交互
            axios({
            url: 'http://ajax-api.itheima.net/api/province',
             method: 'get',
            }).then((res2) => {
                console.log(res2)
            })
        }
        
    </script>
</body>
</html>